Pure sound Bluetooth speaker wireless

1.Support : Bluetooth all, music player,TF card, Aux,USB-disk

2.AUX input : 3.5mm

3.Bluetooth 4.2

4.Power rating : 3Wx2

5.Rated impedance : 3 ohm

6.Working hour : 4-5hrs

7.Working range : 10m

8.Power supply : USB 5V

9.Battery voltage : 3.7-4.2V

10.Battery capacity : 1200mah

11.Frequency response : 100Hz-20kHz